A spectroscopic and Judd–Ofelt analysis of the relaxation dynamics of Tm3+ in the fluorapatites, FAP, S-FAP, and B-FAP
| Autor: | Carl E. Bonner, George B. Loutts, Peter M. Mwangi, Lester J. Richardson, Sennay Stefanos, Brian M. Walsh, Santiel J. Creekmore |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Absorption spectroscopy
business.industry Chemistry Organic Chemistry Relaxation (NMR) Analytical chemistry Population inversion Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Ion law.invention Inorganic Chemistry Optics law Spontaneous emission Emission spectrum Electrical and Electronic Engineering Physical and Theoretical Chemistry Absorption (electromagnetic radiation) business Spectroscopy |
| Zdroj: | Optical Materials. 20:1-12 |
| ISSN: | 0925-3467 |
| DOI: | 10.1016/s0925-3467(02)00005-8 |
| Popis: | The spectroscopic analysis of the absorption properties of the Tm3+ ion in the three fluorapatite crystals has been performed. Using the room temperature absorption data, the spontaneous emission rates, cross-sections and cross-relaxation rates have been determined using Judd–Ofelt theory. Based on emission lifetimes and emission cross-sections for the 3 F 4 → 3 H 6 and 3 H 4 → 3 H 6 transition, as well as the rate of energy transfer by cross-relaxation, the probabilities of cross-relaxation and population inversion by cross-relaxation compare favorably to other laser hosts such as YLF and YAG. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect